83% is the change from 494 to 904
Calculation steps:
[( 904 - 494 ) ÷ 494] x 100 = 83%
Formula
Percentage change = [(904 - 494) / 494] x 100
Subtract the new number by the original number
904 - 494 = 410
410 ÷ 494 = 0.8299595141700404
0.8299595141700404 x 100 = 83%